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STPM10BTR

Public Made by Adom

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STMicroelectronics Energy Metering, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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STPM10BTR

STMicroelectronics · Energy Metering · TSSOP-20

STPM10BTR from STMicroelectronics, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 WDG output Watchdog output that gives a 16 ms positive pulse every 1.6 s while the host keeps latching data, and goes active high if latching requests are not made within 1.6 s.
2 ZCR output Zero-crossing signal output (see Section 7.4 for the ZCR signal).
3 SCS input SPI interface enable pin: SPI operation is enabled when SCS is low, and SCS is also the idle-state control for the SPI pins.
4 VDDD power_out 1.8 V output of the internal low-drop regulator that supplies the digital core; a 100 nF low-ESR capacitor to VSS should be placed close to the pin.
5 VSS power_in Ground and reference point for all internal signals.
6 VCC power_in Main supply voltage input; the DC input is rated -0.3 to 6 V and the device is held in reset when VCC is below 2.5 V.
7 VO power_out Output of the internal low-drop regulator.
8 VDDA power_out 3 V output of the internal low-drop regulator that supplies the analog part; a 100 nF low-ESR capacitor to VSS should be placed close to the pin.
9 IIP1 input Positive input of the primary current channel; analog input voltage is limited to -0.7 to 0.7 V.
10 IIN1 input Negative input of the primary current channel; analog input voltage is limited to -0.7 to 0.7 V.
11 IIP2 input Positive input of the secondary current channel; analog input voltage is limited to -0.7 to 0.7 V.
12 IIN2 input Negative input of the secondary current channel; analog input voltage is limited to -0.7 to 0.7 V.
13 VIP input Positive input of the voltage channel; analog input voltage is limited to -0.7 to 0.7 V.
14 VIN power_in Negative input of the voltage channel; analog input voltage is limited to -0.7 to 0.7 V.
15 SYN bidirectional SPI interface pin used for latching and read/write mode selection; the pin table lists it as I/O while Section 7.19 describes it as an input.
16 CLKIN input Crystal oscillator input, used when the crystal oscillator is selected (RC bit = 0).
17 CKOUT output Crystal oscillator output, used when the crystal oscillator is selected.
18 SCL bidirectional SPI interface clock pin; the pin table lists it as I/O while Section 7.19 describes it as an input clock.
19 SDA bidirectional SPI interface data pin: input in write mode and output in read mode, with an internal weak pull-up of about 15 µA.
20 LED output Active energy pulsed output whose pulse rate is proportional to energy and is used for calibration.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TSSOP-20
Category Data Acquisition
Pins 20

CAD (KiCad official)

  • Symbol: STPM10BTR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: stpm10btr-etched.step / stpm10btr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stpm10btr.step / stpm10btr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (47 pp, sha256 0b752c6906935caa, retrieved 2026-10-12, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF